Here are some of the common names for fuel that will work in a handwarmer, however there are probably other names for it in other parts of the world:

- Lighter fluid (EG: Ronsonol)- White gas- Naptha Note, from Wikipedia: (Naphtha is a flammable liquid hydrocarbon mixture. Mixtures labelled naphtha have been produced from natural gas condensates, petroleum distillates, and the distillation of coal tar and peat. In different industries and regions naphtha may also be crude oil or refined products such as kerosene, which probably will not work well in a handwarmer.)- Coleman camping fuel- ligroin- varnish makers and painters naptha- benzin- shellite

It's important to remember that hydrocarbon fumes are required to react with the catalyst and start an exothermic reaction. I recall getting a note from someone that thought alcohol should work fine in a handwarmer. I pointed out to him that alcohol oxidizes to an aldehyde (or a carboxylic acid), neither of which will produce heat when they interact with platinum. For anyone interested in what happens with you evaporate hydrocarbons such as naphtha, there is a more detailed explanation on our FAQ.

Benzene and benzine are not the same thing. Though they are often confused or used interchangeably in books and magazines, they are very different.Benzene is carcinogenic and was removed from the consumer market 40 years ago. Before then it was often used as a paint and varnish remover.

Benzine is another name for naphtha in the US, though the term is rarely used in this manner anymore. It’s also a common name for gasoline in England.

Naphtha (benzine) is a faster evaporating, less oily (“drier”) form of mineral spirits. It’s not dangerous if used in moderation.

HiIn the Nordic Coutries ( Norway, Finland, Denmark, Iceland and Sweedenwe use " Alkylat bensin 4-stroke " This is environment friendly fuel witch is very pure and clean.I have been using it for many years in both zippo lighters and hand warmers.The price in Norway is 4 USD per litre.Link to one supplier :biltema.no/fritid/hage/hagemaskiner/tilbehor-til-hagemaskiner/alkylatbensin-4-takt-2000031607